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Ethyl Glucuronide (EtG) is a unique biological metabolite that is formed in the body after the consumption of ethanol, typically from drinking alcoholic beverages. Reported to be detectable in urine typically from 8-80 hours after ingestion, and 2-36 hours in blood EtG is detectable over a period roughly 5-6 times longer than traditional urine ethanol testing Detectable in oral fluid only a few hours longer than ethanol* EtG has also been isolated in hair follicles *G.Heiseth, B. Yttredal, et.al. ; JATox: July 2010
EtG/EtS Alcohol Testing. EtG is a direct metabolite of alcohol (ethanol). Its presence in urine may be used to detect recent ethanol ingestion, even after ethanol is no longer measurable. The presence of EtG in urine is an indicator that ethanol was ingested and can be detected in urine for up to 80 hours after ingestion. In addition to EtG, recent scientific studies have identified ethyl sulfate (EtS) as a second specific metabolite or biomarker of ethanol.